46 results about "Water aging" patented technology

The invention discloses a waterproof structure for building expansion joints, which comprises: an elastic pad fixedly mounted on the expansion joint; a first waterproof component having a first drainage groove and a U-shaped first connecting portion; a second waterproof component, It has a second drainage groove and a U-shaped second connecting part. The structure of the second waterproof member is symmetrical to that of the first waterproof member. The first waterproof member and the second waterproof member pass through the first connecting part and the second waterproof member. The connecting parts are buckled together and fixedly installed on the elastic pad; after the first connecting part and the second connecting part are buckled together, there is a reserved gap between them. The invention can effectively solve the leakage problem caused by factors such as waterproof aging, shrinkage, cracking, and inconsistent foundation settlement coefficients, and solve the technical problem of anti-leakage of expansion joints in building spaces such as toilets, thereby effectively avoiding water leakage and damage in the later stage. A series of problems such as inconvenient maintenance can effectively reduce the cost of maintenance and repair in the later period and ensure the waterproof quality of construction.

Described herein are polyphenylene sulfide (PPS) polymer compositions including a low MFR PPS polymer and E-CR glass fibers. It was surprisingly discovered that the PPS polymer compositions had significantly improved retention of tensile strength and tensile elongation after water aging (water aging performance), relative to corresponding PPS polymer compositions having E glass fibers instead of the E-CR glass fibers. Moreover, it was also discovered that PPS polymer compositions including E-CR glass fibers in conjunction with a low MFR PPS polymer and a high MFR PPS polymer had unexpected synergies with respect to water aging performance, relative to corresponding polymer compositions including E-CR glass fibers and either a low MFR PPS polymer or a high MFR PPS. Due at least in part to the improved water aging performance, the PPS polymer compositions can be advantageously incorporated into application settings where the polymer composition is in contact with water. Examples include,but are not limited to, drinking water applications.

The invention discloses a thin-layer pavement material suitable for wet road and bridge decks, which includes epoxy resin cement and wear-resistant aggregate, wherein the epoxy resin cement includes a mass ratio of 1:(0.5~ 0.85) of component A and component B; the component A is mainly composed of the following raw materials in proportion by mass: epoxy resin: 60-80, toughening agent: 5-15, reactive diluent 10-30 , coupling agent 0.5-1.5; the B component is mainly composed of the following raw materials in proportion by mass: curing accelerator 5-8, curing agent 92-95. Also disclosed is a preparation method for the thin-layer pavement material suitable for wet road and bridge decks. The pavement material can be applied to wet road and bridge decks, has good skid resistance, wear resistance, outstanding interface bonding performance, waterproof, low water absorption, good boiling aging resistance, and good durability.

The invention discloses an analogy method for aging of an asphalt aqueous solution. The method comprises the following steps of: determining the pH value and the concentration of the contained mediumof an aqueous solution contacted by an outdoor service asphalt pavement under extreme conditions according to the type of the aqueous solution, and preparing an analogy aqueous solution; preparing asphalt film specimens with a film thickness of less than 1 mm after short-term thermal oxygen aging of the asphalt; and placing the asphalt film specimens in a sample tray, and using the analogy water solution to carry out a water aging erosion test according to the total effective time of outdoor water erosion. The invention provides a method in which the aqueous solution of the corresponding medium is prepared according to the type of the aqueous solution in the outdoor service environment to carry out the water erosion on the asphalt so as to simulate the water erosion during the service of the asphalt.

The invention discloses a natural handmade soap. The handmade soap comprises the following components in parts by weight: 70-80 parts of soap grains, 10-15 parts of Sapindus chinensis extract, 3-8 parts of aged sepiolite, cocoamide 2-6 parts of propyl betaine; wherein, the extract of Sapindus chinensis is prepared according to the following method: take the dry Sapindus sativa fruit, soak in warm water equivalent to 5-10 times its weight, then boil and extract, Until the specific gravity of the obtained extract is 1.0-1.2, stop the extraction, filter, and obtain the extract of Sapindus chinensis; the sepiolite after the aging treatment is prepared according to the following method: take α sepiolite, pulverize, add water and age After 7-10 days, filter, add lime solution with a mass concentration of 1-1.5% to the obtained filter residue, soak for 7-10 days, filter, dry the filter residue, pulverize, and obtain. The handmade soap of the invention can effectively clean the skin and inhibit bacteria, and has less irritation to the skin.

The invention discloses an indoor simulated asphalt mixture aging method, which comprises the following steps: preparing asphalt mixture; performing short-term aging on the asphalt mixture; making a standard Marshall test piece, and then performing cooling and stripping; performing long-term aging; performing thermal oxidation Water aging; asphalt extraction experiment to obtain recycled asphalt; index test and component analysis of asphalt mixture and recycled asphalt; comparison of asphalt mixture and recycled asphalt data to obtain the aging degree of asphalt mixture. The invention provides an indoor simulated asphalt mixture aging method. According to the experimental method, the aging performance of the asphalt mixture can be evaluated, thereby providing theoretical guidance for practical engineering.

The invention relates to a water age control system for secondary water supply equipment. The water age control system comprises a flowmeter, a liquidometer, an adjusting valve, a pressure meter, a water tank and a controller, wherein the controller is separately connected to the flowmeter, the liquidometer, the adjusting valve and the pressure meter; an intelligent analyzing engine is arranged inthe controller, collects water consumption data of a plurality of months and predicts a water consumption mode curve based on the water consumption data of the plurality of months; and the controllerjudges and classifies the water consumption nature by the water consumption mode curve, calculates a water storage curve of the water tank according to the water consumption mode curve, then acquiresa water inflow curve of the water tank according to the water storage curve and the water consumption mode curve, and controls the adjusting valve in real time according to a target water inflow. Itis ensured that tap water in the water tank is adjusted dynamically.

The invention discloses a water age measurement method for a semi-closed water area. The method comprises the following steps that: firstly, establishing the hydrodynamic force mathematical model of awater area to be measured; through the hydrodynamic force mathematical model, calculating the water depth and flow velocity information of each water quality point of the water area to be measured; constructing a convective diffusion mathematical model, and setting the boundary condition of the convective diffusion mathematical model; according to the hydrodynamic force mathematical model, calculating to obtain the water level and flow velocity information of each position of the area to be measured and the boundary condition of the convective diffusion mathematical model; calculating the concentration values of a conservative substance p and a non-conservative substance r of each moment of each water quality point of the area to be measured through the convective diffusion mathematical model; according to the concentration values of a conservative substance p and a non-conservative substance r of each moment of each water quality point of the area to be measured, calculating the instantaneous water age of each corresponding moment of each water quality point of the area to be measured; and finally, according to the instantaneous water age of each corresponding moment of each water quality point of the area to be measured, calculating a time average water age in each time period of each water quality point of the water area to be measured. By use of the method, the water age of the semi-closed water area can be efficiently, conveniently and accurately calculated.